Voigtländer Hyper Wide-Heliar 10mm f/5.6

Voigtländer Hyper Wide-Heliar 10mm f/5.6

When Cosina introduced this lens under the Voigtländer name in 2015, it was widely described as the widest rectilinear, non-fisheye lens ever made to cover a full-frame image circle, reaching roughly a 130-degree angle of view without the bowed lines of a fisheye [1][2]. It was offered both in Leica M mount and in Sony E mount, and unlike the 12mm and 15mm Heliars, whose earlier rangefinder versions had existed for years, the 10mm was genuinely new in both mounts at launch [2]. For Leica M shooters it filled a focal length that Leica itself never produced, which is much of the reason collectors and ultra-wide enthusiasts took notice [3].

The optical design uses 13 elements in 10 groups in a near-symmetric layout that includes two aspherical elements, a configuration closely related to the contemporary Super Wide-Heliar 15mm and chosen to keep distortion negligible while holding the lens compact [1]. The barrel is all-metal and very solidly built, with a well-damped focus ring, a 10-blade aperture that clicks at half-stop intervals, and a built-in hood; like the 12mm Heliar, it has no filter thread, and its bulging front element makes conventional filter use difficult [1]. It focuses down to 0.5 m and weighs only 312 g, making it small and light for its coverage [1]. Because the depth of field at 10mm and f/5.6 is enormous, the lens is not rangefinder coupled and is focused by scale or on the sensor; on a digital M or an EVF camera such as the Leica SL it can still be focused precisely, though the slow aperture makes critical focus harder to judge than with a fast lens [1].

Documentation treats the M-mount and E-mount versions as optically identical, and as of the reviews surveyed only a single M-mount version appears to have been produced, with no factory finish variants beyond black widely recorded [1][2]. Retail packaging and dealer listings have referred to it as the "Heliar-Hyper Wide" and "Hyper Wide-Heliar," and the E-mount version carried Cosina catalogue codes such as BA334A, so naming and code differences are mainly a matter of mount and market rather than separate optical recipes [2].

Optical qualities

Rendering Reviewers consistently describe a lens that draws cleanly, with strong contrast, rich if slightly cool color, and an almost distortion-free rendering that suits architecture and interiors [1][3]. Its character comes more from the extreme perspective than from any softness or glow.

Sharpness Focused at infinity the center is excellent wide open, and by f/8 the lens is sharp across nearly the whole frame, an unusual result for so wide a design; diffraction softens results from about f/11 onward [1]. Performance is weaker at the minimum focus distance, where wide-open corners do not fully resolve even stopped down, but this rarely matters in normal use [1].

Distortion For a 10mm lens the rectilinear correction is remarkable, with distortion that is negligible in real-world shooting and easily cleaned up with a suitable lens profile [1][3].

Distortion and vignetting The main optical cost of the symmetric formula is heavy vignetting wide open that never fully disappears on stopping down, together with a mild blue color cast toward the edges; both can be largely corrected in software [1].

Flare resistance Several reviewers found flare well controlled, appearing only occasionally as small colored shapes in direct sun, which is helpful for landscape and architectural work [1].

History

Development and Launch The lens arrived in 2015 as part of a wave of Voigtländer Heliar ultra-wides from Cosina, positioned at the extreme end of the range above the existing 12mm and 15mm models [2]. Its stated purpose was to push rectilinear coverage further than any prior full-frame lens, and it was promoted as bettering even the widest zoom designs of the time in angle of view [3]. Because there was no Leica equivalent at or near 10mm, the M-mount version gave rangefinder and mirrorless users access to a focal length the system had never otherwise offered [3].

Collector Notes Buyers should expect no filter ring and plan accordingly; aftermarket holders exist, including a Bombo 100mm system and a NiSi 150mm holder, but user reports note the smaller system can vignette on some bodies while the larger one works but is bulky and costly [1]. The reported physical figures vary slightly between the M and E versions in published reviews, so weight and length quoted for one mount should not be assumed identical to the other [1][2]. When buying used, the main things to check are the integrity of the soft pressure-fit cap, the smoothness of the focus and aperture rings, and the condition of the exposed front element, since the lens cannot take a protective filter [1].

Sources

• [1] Vieri Bottazzini. Voigtlander Heliar-Hyper Wide 10mm f/5.6 Review. https://www.vieribottazzini.com/2016/08/voigtlander-heliar-hyper-wide-10mm-f5-6-review.html
• [2] Phillip Reeve. Review: Voigtländer 10mm 5.6 E Hyper Wide Heliar. https://phillipreeve.net/blog/review-voigtlander-10mm-5-6-e-hyper-wide-heliar/
• [3] DIYPhotography (Jordan Steele). Review: Voigtländer 10mm f/5.6 Hyper-Wide Heliar (Sony E-Mount). https://www.diyphotography.net/review-voigtlander-10mm-f5-6-hyper-wide-heliar-sony-e-mount/